/ Storm field report · Cottonwood

Hail in Mountain Lake · Jul 25, 2026

NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0" aloft. Open it on the live map to see the swath over the streets.

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Peak hail signal 0" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 0
Ground reports 0 none filed
Radar surfaces 2 NEXRAD + estimated size

Convective day · Jul 25, 2026 · noon–noon UTC

Severity

The 14th most severe storm Mountain Lake has seen in the last 12 months

Composite score · 0.0 / 10
Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

0.0 /10
Peak hail signal
0 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
0 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Mountain Lake saw the hail — from two instruments

Jul 25, 2026 · Mountain Lake, MN

Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.

NEXRAD radar signatures Surface resolved
NEXRAD radar-signature map of the hail storm over Mountain Lake, MN on Jul 25, 2026 Radar signature field

NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.

Max size 0" Detections 0
Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jul 25, 2026 Estimated size field

Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.

Max size 0"

The storm in context

Where Jul 25, 2026 sits in Mountain Lake's hail record.

This was Mountain Lake's 12th recorded hail day, arriving 19 days after the Jul 6, 2026 storm. By severity it ranks 14th of the 14 storms we have logged here. Radar put the day's largest stone over Mountain Lake at 0" — radar-estimated size aloft.

The Jul 25, 2026 convective day was bigger than Mountain Lake: the same system put hail over 303 other tracked cities, 48 of them in Minnesota. Nearest: Windom (5 miles west, up to 0.75"); Saint James (17 miles east, up to 0"); Jackson (21 miles south, up to 0.75").

These maps are stills. In the app this date is one of 14 Mountain Lake storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.

Ground reports

What people on the ground reported

No reports filed with the NWS

These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.

For this storm over Mountain Lake, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.

Below the severe threshold

What 0" hail means for Mountain Lake roofs.

Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.

Radar reading · not confirmed damage

Mountain Lake hail history

14 recorded storm days in Mountain Lake, MN
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Sep 6, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Sep 6, 2026

0.75"
Estimated 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Aug 7, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Aug 7, 2026

1"
Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jul 6, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Jul 6, 2026

1.75"
Signatures 1.75" Estimated 1"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jul 4, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Jul 4, 2026

0.75"
Signatures 0.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jul 2, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Jul 2, 2026

2"
Signatures 2" Estimated 1.25"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jun 29, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Jun 29, 2026

1"
Signatures 1" Estimated 0.5"
6 ground reports Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jun 27, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Jun 27, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Jun 9, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Jun 9, 2026

0.5"
Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on May 25, 2026 Estimated-size surface
Storm date Mountain Lake / MN

May 25, 2026

1"
Signatures 1" Estimated 0.75"
No ground reports filed Open report →
NEXRAD radar-signature map of the hail storm over Mountain Lake, MN on May 18, 2026 NEXRAD surface
Storm date Mountain Lake / MN

May 18, 2026

2.5"
Signatures 2.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on May 17, 2026 Estimated-size surface
Storm date Mountain Lake / MN

May 17, 2026

2.5"
Signatures 2.5" Estimated 1.75"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Apr 23, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Apr 23, 2026

1"
Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Radar-estimated hail-size map of the storm over Mountain Lake, MN on Apr 13, 2026 Estimated-size surface
Storm date Mountain Lake / MN

Apr 13, 2026

1.75"
Signatures 1.75" Estimated 1"
2 ground reports Open report →

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A storm day here is a convective day — it runs from noon to noon UTC, so late-night hail is grouped with the afternoon storm that spawned it rather than split across two calendar dates. Ground reports are public-domain observations from the NOAA Storm Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 7, 2026.